# A266736 (b-file synthesized from sequence entry)
0 1
1 1
2 20
3 374
4 8124
5 190893
6 4727788
7 121543500
8 3212914524
9 86782926068
10 2384725558736
11 66456350375566
12 1873703883228900
13 53351152389518550
14 1531960347453263112
15 44311785923563130392
16 1289909841595078198172
17 37760636720455988917420
18 1110927659386926734186992